libstdc++-v3/testsuite/27_io/basic_stringbuf/sbumpc/char/1.cc

   1 // 981208 bkoz test functionality of basic_stringbuf for char_type == char
   2
   3 // Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003
   4 // Free Software Foundation, Inc.
   5 //
   6 // This file is part of the GNU ISO C++ Library.  This library is free
   7 // software; you can redistribute it and/or modify it under the
   8 // terms of the GNU General Public License as published by the
   9 // Free Software Foundation; either version 2, or (at your option)
  10 // any later version.
  11
  12 // This library is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 // GNU General Public License for more details.
  16
  17 // You should have received a copy of the GNU General Public License along
  18 // with this library; see the file COPYING.  If not, write to the Free
  19 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  20 // USA.
  21
  22 #include <sstream>
  23 #include <testsuite_hooks.h>
  24
  25 std::string str_01("mykonos. . . or what?");
  26 std::string str_02("paris, or sainte-maxime?");
  27 std::string str_03;
  28 std::stringbuf strb_01(str_01);
  29 std::stringbuf strb_02(str_02, std::ios_base::in);
  30 std::stringbuf strb_03(str_03, std::ios_base::out);
  31
  32 // test overloaded virtual functions
  33 void test04()
  34 {
  35   bool test __attribute__((unused)) = true;
  36   std::string           str_tmp;
  37   std::stringbuf                strb_tmp;
  38   std::streamoff                strmof_1(-1), strmof_2;
  39   typedef std::stringbuf::int_type int_type;
  40   typedef std::stringbuf::traits_type traits_type;
  41   typedef std::stringbuf::pos_type pos_type;
  42   typedef std::stringbuf::off_type off_type;
  43
  44   // GET
  45   strmof_1 = strb_01.in_avail();
  46   strmof_2 = strb_02.in_avail();
  47   strmof_1 = strb_03.in_avail();
  48
  49   // int_type sbumpc()
  50   // if read_cur not avail, return uflow(), else return *read_cur & increment
  51   int_type c1 = strb_01.sbumpc();
  52   int_type c2 = strb_02.sbumpc();
  53   VERIFY( c1 != c2 );
  54   VERIFY( c1 == str_01[0] );
  55   VERIFY( c2 == str_02[0] ); //should equal first letter at this point
  56   int_type c3 = strb_01.sbumpc();
  57   int_type c4 = strb_02.sbumpc();
  58   VERIFY( c1 != c2 );
  59   VERIFY( c1 != c3 );
  60   VERIFY( c2 != c4 );
  61   int_type c5 = strb_03.sbumpc();
  62   VERIFY( c5 == traits_type::eof() );
  63 }
  64
  65 int main()
  66 {
  67   test04();
  68   return 0;
  69 }
  70
  71
  72
  73 // more candy!!!